#pragma warning(disable:4996)
#include<stdio.h>
//交换两个整型变量，不创建临时变量
int main()
{
	int a = 3;
	int b = 5;
	a = a ^ b;
	b = a ^ b;
	a = a ^ b;
	printf("%d %d\n", a, b);
	return 0;
}